Home / 22,816.88-31,486.94-12,745.47

Finding the Fourth Proportional to 22,816.88, 31,486.94 and 12,745.47

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Solution

The fourth proportional to 22,816.88, 31,486.94 and 12,745.47 is: 17,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,816.88 : 31,486.94 = 12,745.47 : x
  2. Step 2: Convert to fraction form
    22,816.88/31,486.94 = 12,745.47/x
  3. Step 3: Cross multiply
    22,816.88x = 31,486.94 × 12,745.47
  4. Step 4: Simplify right side
    22,816.88x = 401,315,849.16
  5. Step 5: Solve for x
    x = 401,315,849.16/22,816.88
  6. Step 6: Final answer
    x = 17,588.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.